Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Radio/Audio System Schematics | ||||
1 | Did you review the Radio/Audio System Description and Operation and perform the necessary inspections? | -- | Go to Step 2 | |
2 |
Do all of the speakers operate properly? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Are all of the speakers inoperative? | -- | Go to Step 10 | Go to Step 4 |
4 | Is the vehicle equipped with an audio amplifier? | -- | Go to Step 6 | Go to Step 5 |
5 |
Does the speaker emit an audible pop? | -- | Go to Step 16 | Go to Step 9 |
6 |
Does the voltage measure greater than the specified value? | 0.020 V AC | Go to Step 7 | Go to Step 8 |
7 | Test the appropriate speaker output circuits of the audio amplifier for a short to ground, short to voltage, high resistance, or an open. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 22 | Go to Step 15 |
8 | Test the appropriate speaker output circuits of the radio for a short to ground, short to voltage, high resistance, or an open. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 22 | Go to Step 16 |
9 | Test the appropriate speaker output circuits of the radio for an open. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 22 | Go to Step 18 |
10 | Test the appropriate speaker output circuits of the radio for a short to ground or a short to voltage. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 22 | Go to Step 11 |
11 | Is an audio amplifier installed in the Radio/Audio System? | -- | Go to Step 12 | Go to Step 16 |
12 |
Did you find and correct the condition? | -- | Go to Step 22 | Go to Step 13 |
13 | Test the amplifier present signal circuit of the audio amplifier for a short to ground or an open. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 22 | Go to Step 14 |
14 | Test the ground circuit of the amplifier for an open or high resistance. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems. Did you find and to correct the condition? | -- | Go to Step 22 | Go to Step 17 |
15 |
Does the voltage measure greater than the specified value? | 0.020 V AC | Go to Step 18 | Go to Step 17 |
16 | Inspect for poor connections at the harness connector of the radio. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 22 | Go to Step 19 |
17 | Inspect for poor connections at the harness connector of the audio amplifier. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 22 | Go to Step 20 |
18 | Inspect for poor connections at the harness connector of the appropriate speaker. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 22 | Go to Step 21 |
19 | Replace the radio. Refer to Radio Replacement . Did you complete the replacement? | -- | Go to Step 22 | -- |
20 | Replace the audio amplifier. Refer to Radio Speaker Amplifier Replacement . Did you complete the replacement? | -- | Go to Step 22 | -- |
21 | Replace the suspect speaker. Refer to Speaker Replacement . Did you complete the replacement? | -- | Go to Step 22 | -- |
22 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
